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Finding the Fourth Proportional to 522,878.36, 784,317.50 and 365,414.36

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Solution

The fourth proportional to 522,878.36, 784,317.50 and 365,414.36 is: 548,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,878.36 : 784,317.50 = 365,414.36 : x
  2. Step 2: Convert to fraction form
    522,878.36/784,317.50 = 365,414.36/x
  3. Step 3: Cross multiply
    522,878.36x = 784,317.50 × 365,414.36
  4. Step 4: Simplify right side
    522,878.36x = 286,600,877,299.30
  5. Step 5: Solve for x
    x = 286,600,877,299.30/522,878.36
  6. Step 6: Final answer
    x = 548,121.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.